Hydraulic lock battery tray

Abstract

The utility model relates to vehicle battery fixing technical field, more particularly to a kind of hydraulic lock battery bottom support, comprising: bottom support frame, hydraulic lock and control device;Hydraulic lock is provided with multiple and is respectively set on bottom support frame, and hydraulic lock includes shell, drive cylinder and the lock tongue that can be matched with battery fixed structure, lock tongue is connected with the movable end of drive cylinder, and lock tongue can be along predetermined trajectory and retract into shell inside;Control device includes hydraulic oil pump and distribution valve group, and distribution valve group includes one access end and multiple distribution ends, access end is connected with hydraulic oil pump, and distribution end is set and connected corresponding with multiple hydraulic locks one by one;Hydraulic lock includes the locking state of lock tongue and retract into shell inside the release state of lock tongue, and hydraulic oil pump can output pressure medium, to can simultaneously drive multiple hydraulic locks between locking state and release state switching. Thus it has solved the problem that existing pneumatic locking device structure is complex, and locking force is smaller.

Description

Technical Field

[0001] This utility model relates to the field of vehicle battery fixing technology, and more specifically, to a hydraulic lock battery base. Background Technology

[0002] Currently, with the development of new energy technologies, new energy electric heavy-duty trucks are gradually replacing traditional heavy-duty trucks. However, new energy heavy-duty trucks are constrained by the energy of their on-board batteries. Therefore, new energy heavy-duty trucks generally adopt the solution of replacing the power battery to meet the needs of energy replenishment and range, so as to improve the operating efficiency of new energy heavy-duty trucks.

[0003] Because heavy trucks consume a lot of energy, in order to meet the range requirements, their on-board power batteries are usually significantly larger and heavier than those of ordinary passenger cars. In addition, heavy trucks are inherently heavy, especially when fully loaded with cargo, the weight will increase greatly. Therefore, new energy heavy trucks usually use a hoisting method to remove and replace the power batteries.

[0004] Existing heavy-duty truck power battery fixing devices typically use pneumatic power drive. However, pneumatic equipment requires additional equipment such as compressors and air tanks to be installed in the vehicle, which occupies additional vehicle space. Furthermore, the pneumatic wiring is complex. In addition, the driving force of pneumatic power is relatively small, making it difficult to resist the vibration of the power battery during vehicle operation, and a relatively complex locking structure is required. Utility Model Content

[0005] To address the issues of complex structure and low locking force in existing pneumatic locking devices, this invention provides a hydraulic lock battery base, comprising: a base frame, hydraulic locks, and a control device; multiple hydraulic locks are provided and respectively mounted on the base frame, each hydraulic lock including a housing, a drive cylinder, and a locking tongue that matches the battery's fixing structure, the locking tongue being connected to the movable end of the drive cylinder, and the locking tongue being able to extend or retract into the housing along a predetermined trajectory; the control device includes a hydraulic oil pump and a distribution valve assembly, the distribution valve assembly including an inlet end and multiple distribution ends, the inlet end being connected to the hydraulic oil pump, and the multiple distribution ends being correspondingly set and connected to multiple hydraulic locks; the hydraulic lock includes a locked state with the locking tongue extended from the housing and a released state with the locking tongue retracted into the housing, the hydraulic oil pump being able to output a pressure medium to simultaneously drive multiple hydraulic locks to switch between the locked and released states.

[0006] In some embodiments, the hydraulic pump includes a pump body and a control valve assembly. The pump body can output a pressure medium according to a set pressure, and the control valve assembly can control the flow direction of the pressure medium according to control information. The output end of the pump body is connected to the input end of the control valve assembly, and the output end of the control valve assembly is connected to the distribution valve assembly.

[0007] In some embodiments, the pump body and the control valve assembly are located on the same side of the base frame in the width direction.

[0008] In some embodiments, the hydraulic lock battery base also includes a manual locking assembly, which includes a bracket, a guide sleeve, and a locking pin. The bracket is fixed to the base frame, the guide sleeve is disposed on the bracket, the guide sleeve is cylindrical, and the guide sleeve extends in a direction perpendicular to the battery. The locking pin matches the guide sleeve and can move along the extension direction of the guide sleeve. The locking pin can be inserted into a locking hole provided on the battery.

[0009] In some embodiments, the bracket is fixed to the base frame by the housing.

[0010] In some embodiments, manual locking components are provided on both sides of the base frame along the width direction of the vehicle body.

[0011] In some embodiments, a lubricating sleeve is further provided inside the housing, extending along the moving direction of the latch. The lubricating sleeve is fitted onto the outside of the latch, and fixing holes are evenly distributed on the inner circumferential surface of the lubricating sleeve, with graphite blocks disposed in the fixing holes.

[0012] In some embodiments, the hydraulic lock battery base also includes a guide post disposed on the base frame and extending in a vertical direction.

[0013] In some embodiments, the latch is configured to move horizontally, and the lower side of the latch is configured to gradually tilt upwards in a direction away from the housing.

[0014] In some embodiments, the hydraulic lock battery base also includes a battery interface assembly, which includes an interface body and a buffer. The buffer is disposed on the lower side of the interface body and fixed to the base frame. The buffer is elastic and capable of absorbing potential energy. A battery interface is disposed on the lower side of the battery, and the battery interface matches the interface body.

[0015] To address the problems of complex structure and low locking force in existing pneumatic locking devices, this invention has the following advantages: In the above technical solution, the hydraulic lock battery base can be connected and fixed to the vehicle frame using a base frame. The hydraulic lock is controlled by hydraulic power, thus eliminating the need for pneumatic power control and connection to onboard pneumatic control components, simplifying the connection structure and reducing the use of pipelines. The control device includes a hydraulic oil pump and a distribution valve group. The hydraulic oil pump generates and outputs hydraulic power to control the hydraulic lock, while the distribution valve group distributes the pressure medium output by the hydraulic oil pump to multiple hydraulic locks, thereby simplifying the structure of the hydraulic lock. The hydraulic lock only needs to be equipped with a drive cylinder without a separate power source. At the same time, the action of multiple hydraulic locks can be controlled simultaneously by a single control device, allowing multiple hydraulic locks to switch states simultaneously, simplifying the control circuit and structure. In addition, since the pressure medium used in hydraulic control has a small compression, it can easily achieve a self-locking effect. After reaching the locked state, it can maintain the locked state without continuous power output. Since the hydraulic lock only needs to switch states when the power battery is replaced, the energy consumption of the vehicle can also be reduced. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a hydraulic lock battery base according to one embodiment is shown; Figure 2 A schematic diagram of the structure of a hydraulic lock according to one embodiment is shown; Figure 3 A cross-sectional structural schematic diagram of a hydraulic lock according to one embodiment is shown; Figure 4 A schematic diagram of a manual locking component structure according to one embodiment is shown.

[0017] Reference numerals: 10-Base support frame; 20-Hydraulic lock; 21-Lock tongue; 22-Drive cylinder; 23-Lubrication sleeve; 24-Housing; 31-Hydraulic oil pump; 311-Pump body; 312-Control valve assembly; 32-Distribution valve assembly; 40-Manual locking assembly; 41-Bracket; 42-Guide sleeve; 43-Locking pin; 50-Guide post; 60-Battery interface assembly; 61-Interface body. Detailed Implementation

[0018] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0019] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0020] This embodiment discloses a hydraulic lock battery base, such as Figures 1 to 4As shown, the device may include: a base frame 10, hydraulic locks 20, and a control device; multiple hydraulic locks 20 are provided and are respectively disposed on the base frame 10. Each hydraulic lock 20 includes a housing 24, a drive cylinder 22, and a locking tongue 21 that can match the fixing structure of the battery. The locking tongue 21 is connected to the movable end of the drive cylinder 22 and can extend or retract into the housing 24 along a predetermined trajectory; the control device includes a hydraulic oil pump 31 and a distribution valve group 32. The distribution valve group 32 includes an access end and multiple distribution ends. The access end is connected to the hydraulic oil pump 31, and the multiple distribution ends are correspondingly disposed and connected to the multiple hydraulic locks 20; the hydraulic locks 20 include a locked state in which the locking tongue 21 extends out of the housing 24 and a released state in which the locking tongue 21 retracts into the housing 24. The hydraulic oil pump 31 can output a pressure medium to simultaneously drive multiple hydraulic locks 20 to switch between the locked state and the released state.

[0021] In the above technical solution, the hydraulic lock battery base can be connected and fixed to the vehicle frame using the base frame 10. The hydraulic lock 20 is controlled by hydraulic power, thus eliminating the need for pneumatic power control and eliminating the need for connection with on-board pneumatic control components, simplifying the connection structure and reducing the use of pipelines. The control device includes a hydraulic oil pump 31 and a distribution valve group 32. The hydraulic oil pump 31 generates and outputs hydraulic power to control the hydraulic lock 20, while the distribution valve group 32 distributes the pressure medium output by the hydraulic oil pump 31 to multiple hydraulic locks 20, thereby simplifying the structure of the hydraulic lock 20. This allows the hydraulic lock 20 to only require a drive cylinder 22 without the need for a separate... The system is equipped with a power source and can simultaneously control the operation of multiple hydraulic locks 20 through a single control device. This allows multiple hydraulic locks 20 to switch states simultaneously, simplifying the control circuitry and structure. Furthermore, since the pressure medium used in hydraulic control has a small compression, it can easily achieve a self-locking effect. Once locked, it can maintain the locked state without requiring continuous power output. Because the hydraulic locks 20 only need to switch states when the power battery is replaced, it can also reduce the vehicle's energy consumption. Compared to pneumatic drive, hydraulic drive has a larger and more stable driving force and better resistance to vibrations caused by vehicle bumps.

[0022] It should be noted that the base frame 10 preferably adopts a frame structure, which has good load-bearing capacity while reducing weight. Of course, a support plate or a combination of support frame and support plate can also be used depending on actual needs. The base frame 10 is used for fixing to the vehicle frame and also for supporting the power battery. The locking tongue 21 of the hydraulic lock 20 can be matched with the battery fixing structure of the power battery to achieve a fixing effect. Specifically, the battery fixing structure can be a hole that matches the shape of the locking tongue 21. The locking purpose is achieved by inserting the locking tongue 21 into the hole. Alternatively, the battery fixing structure can also be part of the power battery frame. The locking tongue 21 extends to the upper side of the frame's crossbeam to apply downward pressure to the frame and press it onto the base frame 10. This can also effectively resist vibrations during vehicle operation. The hydraulic lock 20 can be arranged around the center of the base frame 10 to generate a more balanced locking force. In one implementation, the drive cylinder 22 may include a cylinder body and a piston. The piston can move along the extension direction of the cylinder body, dividing the cylinder body into an extension chamber and a retraction chamber. The hydraulic pump 31 can control the inflow or outflow of the pressure medium by connecting to the extension chamber or the retraction chamber, thereby controlling the movement of the piston. Preferably, the hydraulic pump 31 may include multiple output lines, which are respectively connected to the extension chamber and the retraction chamber, so that the piston runs stably and quickly. The hydraulic cylinder can achieve the driving effect by transferring the pressure medium from the extension chamber to the retraction chamber, or by transferring it in the opposite direction. The distribution valve group 32 may selectively be equipped with one or more distribution valves depending on the situation. When the number of hydraulic locks 20 is small and the distance between them is short, one distribution valve can be set to connect multiple hydraulic locks 20. When there are many hydraulic locks 20 or the distance between them is long, multiple distribution valves can also be set.

[0023] As a specific implementation method, such as Figure 1 As shown, the hydraulic oil pump 31 includes a pump body 311 and a control valve group 312. The pump body 311 can output pressure medium according to the set pressure. The control valve group 312 can control the flow direction of the pressure medium according to the control information. The output end of the pump body 311 is connected to the input end of the control valve group 312, and the output end of the control valve group 312 is connected to the distribution valve group 32.

[0024] In this embodiment, the pump body 311 is only used to apply pressure to the pressure medium, while the control valve assembly 312 may have multiple output ports to control the output of the pressure medium.

[0025] To save space and facilitate maintenance of the hydraulic pump 31, such as Figure 1As shown, the pump body 311 and the control valve assembly 312 are located on the same side of the width direction of the base frame 10. Since heavy trucks are typically wide, the base frame 10 is usually located behind the vehicle cab, with its length direction parallel to the width direction of the vehicle (the direction perpendicular to the vehicle's travel direction in the horizontal direction). The width direction of the base frame 10 is parallel to the vehicle's travel direction (the length direction of the vehicle). Therefore, one side of the base frame 10 in the width direction is actually located on both sides of the vehicle, making it relatively easy for workers to access this position. This allows the pump body 311 and the control valve assembly 312 to be conveniently located on one side of the width direction of the base frame 10 for maintenance.

[0026] Since the hydraulic lock 20 is locked solely by the locking tongue 21, with prolonged use, the locking tongue 21 may deform or even break, leading to locking failure. Locking failure could cause the power battery to detach, affecting safe transportation. Similarly, a malfunction in the hydraulic pump 31 could also cause the hydraulic lock 20 to fail and become unable to lock. Therefore, if... Figure 1 , Figure 4 As shown, the hydraulic lock battery base also includes a manual locking assembly 40. The manual locking assembly 40 includes a bracket 41, a guide sleeve 42, and a locking pin 43. The bracket 41 is fixed on the base frame 10, and the guide sleeve 42 is disposed on the bracket 41. The guide sleeve 42 is cylindrical and extends in a direction perpendicular to the battery. The locking pin 43 matches the guide sleeve 42 and can move along the extension direction of the guide sleeve 42. The locking pin 43 can be inserted into the locking hole provided on the battery.

[0027] The manual locking assembly 40 can serve as an emergency temporary fixing method when the hydraulic lock 20 partially fails, allowing the driver or staff to manually secure the power battery. Specifically, when the hydraulic lock 20 malfunctions, the locking pin 43 can be pushed and inserted into the locking hole on the battery. The locking hole can be located on the main load-bearing fixing structure such as the power battery frame, thereby securing the battery to the base frame 10 through the cooperation of the locking pin 43 and the locking hole. In addition, to ensure locking stability, a limiting structure can be provided to limit the locking pin 43 to prevent it from disengaging from the locking hole.

[0028] To save space, such as Figure 4 As shown, the bracket 41 is fixed to the base frame 10 via the housing 24. By integrating the bracket 41 with the housing 24 of the hydraulic lock 20, the volume occupied by the bracket 41 is reduced.

[0029] Because heavy-duty trucks are wide, and the power battery is usually installed behind the cab, the gaps on the front and rear sides are small. The front side is close to the cab, and the rear side is close to the cargo bed and other equipment. Therefore, it is difficult for the driver or staff to access the front and rear sides of the power battery along the vehicle's length direction. For this reason, Figure 1 As shown, the manual locking components, similar to the pump body 311 and the control valve assembly 312, are located on both sides of the base frame 10 along the width direction of the vehicle body. These locations at both ends of the vehicle's width direction make them easily accessible and provide ample operating space, facilitating operation when the manual locking components need to be operated.

[0030] To guide the movement of the latch 21, a cylindrical guide structure is typically provided inside the housing 24 to allow the latch 21 to move along the extension direction of the guide structure. However, prolonged use will cause wear between the latch 21 and the guide structure. In this application, as... Figure 3 As shown, a lubrication sleeve 23 extending along the moving direction of the latch 21 is also provided inside the housing 24. The lubrication sleeve 23 is fitted onto the outer side of the latch 21, and fixing holes are evenly distributed on the inner circumferential surface of the lubrication sleeve 23, with graphite blocks placed in the fixing holes. During the movement of the latch 21, it comes into contact with the lubrication sleeve 23, and the graphite blocks therein will generate graphite powder during the contact wear process, thereby playing a good dry lubrication role. While ensuring a good lubrication effect, it can avoid the adhesion of dust compared to lubricating oil or grease.

[0031] Because the power battery needs to be accurately lowered to a predetermined position on the base frame 10 during the hoisting process, it cannot deviate horizontally. Therefore, as Figure 1 As shown, the hydraulic lock battery base also includes a guide post 50, which is mounted on the base frame 10 and extends vertically. The battery frame of the power battery may be provided with guide holes that match the guide post 50. During descent, the guide post 50 extends into the guide hole, thereby guiding the battery's descent. Furthermore, the cooperation between the guide post 50 and the guide hole also prevents the battery from shifting horizontally relative to the base frame 10, thus limiting the battery's horizontal movement.

[0032] In one specific implementation, the latch 21 is configured to move horizontally, and its lower side is configured to gradually tilt upwards away from the housing 24. When the latch 21 is configured to move horizontally, due to manufacturing tolerances, the latch 21 may come into contact with the battery frame when it extends out of the housing 24 to lock, resulting in locking failure. By gradually tilting the lower side of the latch 21 upwards, the end of the latch 21 facing the battery frame is slightly higher than the battery frame, allowing it to gradually contact the battery frame during extension and ensuring that the lower side of the latch 21 can fully contact the battery frame, thus ensuring sufficient vertical restraint.

[0033] To facilitate the connection between the battery and the vehicle, such as Figure 1 As shown, the hydraulic lock battery base also includes a battery interface assembly 60. The battery interface assembly 60 includes an interface body 61 and a buffer. The buffer is located on the lower side of the interface body 61 and is fixed to the base frame 10. The buffer is elastic and can absorb potential energy. A battery interface is provided on the lower side of the battery, and the battery interface matches the interface body 61. When the battery falls, it can directly dock with the interface body 61 and complete the connection by means of gravity. However, since the battery has a large self-weight, in order to prevent the impact from falling and damaging the interface body 61, a buffer is provided on the lower side of the interface body 61. The buffer may include an elastic element, which converts kinetic energy into elastic potential energy to play a buffering role.

[0034] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the scope of this disclosure.

Claims

1. A hydraulic lock battery base, characterized in that, The hydraulic lock battery base includes: Base frame, hydraulic lock, and control device; The hydraulic locks are provided in multiple ways and are respectively disposed on the base frame. The hydraulic locks include a housing, a drive cylinder and a locking tongue that can be matched with the fixing structure of the battery. The locking tongue is connected to the movable end of the drive cylinder and can extend or retract into the housing along a predetermined trajectory. The control device includes a hydraulic oil pump and a distribution valve group. The distribution valve group includes an access terminal and multiple distribution terminals. The access terminal is connected to the hydraulic oil pump, and the multiple distribution terminals are correspondingly set and connected to multiple hydraulic locks. The hydraulic lock includes a locked state with the latch extended from the housing and a released state with the latch retracted into the housing. The hydraulic pump can output a pressure medium to simultaneously drive multiple hydraulic locks to switch between the locked state and the released state.

2. The hydraulic lock battery base according to claim 1, characterized in that, The hydraulic pump includes a pump body and a control valve assembly. The pump body can output a pressure medium according to a set pressure. The control valve assembly can control the flow direction of the pressure medium according to control information. The output end of the pump body is connected to the input end of the control valve assembly, and the output end of the control valve assembly is connected to the distribution valve assembly.

3. A hydraulic lock battery base according to claim 2, characterized in that, The pump body and the control valve assembly are located on the same side of the base frame in the width direction.

4. A hydraulic lock battery base according to claim 1, characterized in that, The hydraulic lock battery base also includes a manual locking assembly, which includes a bracket, a guide sleeve, and a locking pin. The bracket is fixed to the base frame, and the guide sleeve is disposed on the bracket. The guide sleeve is cylindrical and extends in a direction perpendicular to the battery. The locking pin matches the guide sleeve and can move along the extension direction of the guide sleeve. The locking pin can be inserted into a locking hole provided on the battery.

5. A hydraulic lock battery base according to claim 4, characterized in that, The bracket is fixed to the base frame via the housing.

6. A hydraulic lock battery base according to claim 4, characterized in that, The manual locking components are located on both sides of the base frame along the width of the vehicle body.

7. A hydraulic lock battery base according to claim 1, characterized in that, The housing is also provided with a lubricating sleeve extending along the moving direction of the locking tongue. The lubricating sleeve is fitted on the outside of the locking tongue. Fixing holes are evenly distributed on the inner circumferential surface of the lubricating sleeve, and graphite blocks are placed in the fixing holes.

8. A hydraulic lock battery base according to claim 1, characterized in that, The hydraulic lock battery base also includes a guide post, which is disposed on the base frame and extends in the vertical direction.

9. A hydraulic lock battery base according to claim 1, characterized in that, The latch is configured to move horizontally, and the lower side of the latch is configured to gradually tilt upwards in a direction away from the housing.

10. A hydraulic lock battery base according to claim 1, characterized in that, The hydraulic lock battery base also includes a battery interface assembly, which includes an interface body and a buffer. The buffer is located on the lower side of the interface body and fixed to the base frame. The buffer is elastic and can absorb potential energy. A battery interface is provided on the lower side of the battery, and the battery interface matches the interface body.

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